The purpose of this short book is to introduce the reader to some of the key concepts that underpin Lean; making businesses faster and more competitive by understanding and eliminating the sources of waste in processes. It is not intended as an exhaustive text on the subject, more as a summary with some practical examples and anecdotes that will help the reader understand what is meant by Lean. This text is intended for the manager who has recently been introduced to Lean and seeks guidance regarding key concepts, or managers from manufacturing and service sectors wishing to familiarise their employees with Lean concepts as well as students seeking to gain an understanding of Lean in its many guises within various industries.